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and your saying 35-40mph with wheelies easily? and then if i did want to step up i could go to something like a 9 or 10l and be safe on 4s?
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What 3s battery do you plan on running? |
maxamps 5000 lipo. thats what i will run on 3s right now. and later on i will probly get twin 5000 2s to run in it if i go that high. i already have the 3s. and i will be running 2speed and mech brake. and a 9l is rated for 2700kv(around that) so it would probly run a little cooler, slower, and have more acceleration than the 8l right? or should i just get the 8l? since you say the 7xl wont be able to turn fast enough on a 3s... that disapoints me. squee said he runs a 3s and 7xl and it does good.
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Given your battery choice, you may want to stay with the 8l and the 16/40 gearing. Nothing against maxamps, but if you are going to buy a pair of 2s lipos go with the trakpower batteries. I have a pair of 5k maxamps 2s packs and was not happy with their performance oin my 7xl powered revo. Did not have the punch that a battery of that size should. Not sure what squee is using in the way of batteries, but it is most likely a better pack.
The 9l will run cooler, but slower and the acceleration will not be much differnent if any. I have run a 9l in a heavily modified tune buggy stampede. Not a bad motor, but the 8l worked very well in the revo. It runs right at 35k rpm on 3s and will allow for lower gearing than the 9l will. That should help the mm and the batteries. |
I think you would be fine with the 7X, personally. If you get the Feigao from United Hobbies, you could get both. There rather cheap there.
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well i was actually looking at possibly the reedy packs once they come out. when they get out thats probly when i will get the money for a 4s. okay so 8l, mamba max, and tekno kit. keep the mech brakes and 2 speed and i should have a fast truck? faster than a 3.3? sorry for all the questions im just kinda worried abotu getting something that wont do what i would like it too.
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I wouldn't use the Tekno kit. The RC-M mount with the Tekno tray is the way to go...
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why? whats wrong with the tekno kit?
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i like the idea of it. keep your clutch, mechanical brakes, everything needed is included. seems liek a decent deal to me.
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Yea, its a decent deal, but the clutch is the reason I wouldn't get it...
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what is wrong with the clutch? you set it loose so it instantly grabs when you get on the throttle i would think. or set it tight to give even more bite. i think its a good thing personally. why would you say its bad?
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and it will be both a good basher and racer? does it have the torque and speed to outrun a 3.3 on the track? given the same driver and all?
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Having run a 3.3 revo, I am not really impressed. The lack of low end torque and poor throttle respose really seem like a problem for racing. I do not race, however I can control a rc vehicle well, and apreciate the various suspension adjustments, etc. I would say that a brushless system (of any type) would be easier to drive due to its relatively flat torque curve and linear horsepower. I have not seen a slow brushless vehicle yet, and do not see a nitro vehicle being able to top out, speed wise, before a brushless would. The acceleration is so much better with a brushless setup. There is really no comparision. We ran the 8l revo in front of a few nitro revo owners and they were all very impressed. They tried to drive it and said that it was too powerful (for their skill level, HAHA!).
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Personally, I think the clutch is something that should stay on a nitro engine. I think its a good idea, especially for some applications, but not a Revo. Another thing to consider is the fact that from what people have posted, it seems like it will kill your runtime. Its just one more thing thats not necessary. I use the RC-M mount and with the center diff, it takes off great, no cogging, and wheelies aren't an issue (wheelies are useless in a race anyway) and everything can be kept stone cold. The MM was getting a little hot, but only cause it was overgeared slightly and I was using the internal BEC.
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okay well im deffinetly getting the 8l and the mamba max. tekno kit is gonna happen. im set on that. and my maxamps 5000 3s lipo should provide plenty power for the truck right? easily enough to make it lift tires up and good speeds?
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Yep, the 5k 3s pack and the 8l should do what you want!
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very cool. thanks yall
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That's where the Mega and a Quark 65 or MGM 80 would come in hand.
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no tekno got 20 minute races in on one battery. and that was a 3s 8k. bashing they claimed over 35 minutes.
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This is why 3s is not that good, step up to 5s and you will see that a 5s 4000 packs will give you better runtimes that of the 8000 3s. Plus all of the equipmeent will run cooler. Say that you are try to get 1000watts out of a combo, on 3s you need 90amps. On 5s you only need 55 amps. That makes a huge difference on equipment temps. Same esc, same size and weight motor, just less kv, same overall motor and vehicle speed, same gearing. it will run better with higher voltage. I can imagine that the tekno setup with the 8000 3s gets warmer than a similar powered 5s setup. Plus considering that a 8000 3s pack is made of 6 4000 cells, a 5s 4000 will weigh 1/6 of the 8000 pack. Less weight means better performance. |
yes but when you look at my price range.... i cant even afford to get a 4s system... i basically HAVE to use 3s for probly 6 months or so...
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That is why the 8l is so great. You only spend 60-70 bucks inc shipping, and you can sell it when you are done, or put it in a different vehicle. Have fun! |
it will go in something else. probly my maxx and it will run on 3s in that probly amazingly. since my maxx is lighter. yeh i was looking i found it for 60 at one site. can probly get it less at my LHS with my discount. plus $25 for the heatsink clamp. so not too much for a great motor.
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Your not listening to me...I might as well give up...First off, you can get the Feigaos from UNITED HOBBIES for HALF of the normal price...Second, you don't HAVE to run a 3S setup. You can easily sell your Maxamps packs, get a good bit of money, and go buy better, cheaper packs from TrueRC. Third, you will most likely lose runtime with the Tekno kit. Like the runtime there claiming with the Tekno kit. Thats ridiculous with a 8000mah pack. Besides, you should get better runtime in a race than bashing. Don't know about you, but I'm easier on the throttle and definitely more precise in a race then running up and down the street...Fourth, the clutch is really useless. I'm running the direct drive setup and the throttle control is amazing, unlike it will be with a clutch. Its just something else thats not necessary.
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no i heard you. but im going to be running a smaller motor. support my LHS because im great friends with the owner. so all my parts come through him. the clutch might be useless to you. but i like the nitro driving feel, just not the maintenance. so i want to have something a little like nitro. here its the clutch. im not selling my 3s because i use it in 2 other trucks already. and i am going to get a good set of packs to make a 4s later on down the road. and tekno was running a neu motor, mamba max esc, and a 18/36 gearing. i am running a lightened revo with close ratio, similar electronics, and a 16-18/40. i thank you again for your help with all this. but some things are personal preferance. and my preferance is a clutch. i like the way they feel and drive. and at my LHS, i can probly get a feigao motor for LESS than united hobbies.
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I was able to fix my MBX5T somewhat to put my ACn22/30/2 in it. The steering still messed up from the crash due to lost signal. The smallest pinion I have is 14T and the spur is 49T. I will use my 2 3S 2200mAh packs in series and my Schulze 18.97. The motors Kv is 1770 and with 22.2v should give me a little over 39000rpm. I did a little test on carpet with my DPR and full throttle only showed bursts of 90A and with the 7XL using 4S 5000mAh lipos and my MGM 16016 in the truck I saw burst of over 150A and this was on asphalt. I will see if tomorrow I can run the truck and I'll post some data here and I might do a little video as well.
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Here is a quick video of the MBX5T truggy w/ the Mega Acn22/30/2 (1770Kv), Schulze 18.97 and 2 3S 2200mAh lipos in series (22.2v). This truck was in a bad crash and some parts were bent. I was able to get them as straight as possible, but the motor mount still is a little bent and the pinion and spur doesn't align properly. Here is the video: http://www.youtube.com/v/EAtcnCTdjAI
<object width="425" height="350"> <param name="movie" value="http://www.youtube.com/v/EAtcnCTdjAI"> </param> <embed src="http://www.youtube.com/v/EAtcnCTdjAI" type="application/x-shockwave-flash" width="425" height="350"> </embed> </object> Almost forgto to mention that the DPR for some reason didn't record the run. My daughter gets a little excided. |
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